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MSIx table entry is used to program interrupt vectors and it is architecture specific. Add helper functions declaration in Arch/PCIMSI.h. The definition of the function is placed in the respective arch specific code.
22 lines
666 B
C
22 lines
666 B
C
/*
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* Copyright (c) 2023, Pankaj R <dev@pankajraghav.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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// Address register
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static constexpr u32 msi_address_base = 0xfee00000;
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static constexpr u8 msi_destination_shift = 12;
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static constexpr u32 msi_redirection_hint = 0x00000008;
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static constexpr u32 msi_destination_mode_logical = 0x00000004;
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// Data register
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static constexpr u8 msi_data_vector_mask = 0xff;
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static constexpr u32 msi_trigger_mode_level = 0x00008000;
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static constexpr u32 msi_level_assert = 0x00004000;
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// Vector control
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static constexpr u32 msi_vector_control_mask = 0x1;
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static constexpr u32 msi_vector_control_unmask = ~(0x1);
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